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Rabies

What is rabies?

Rabies is a deadly illness caused by a Lyssavirus that spreads to humans through close contact with the saliva of an infected animal, most often from licks, bites or scratches.

What is my risk?

Your risk depends on several factors: your destination, the length of your trip, where you stay, your activities and your access to medical care.

Your risk is much higher if you participate in activities that put you in close contact with animals, such as cave exploration, hunting, camping, hiking, or cycling.

Travellers who will be working in close contact with animals (for example, veterinarians, animal control or wildlife workers or laboratory workers) are at higher risk.

Children are also considered at higher risk because they often play with animals, are less likely to report bites or scratches and are more likely to be bitten in the head and neck area. In many areas of the world, rabies is most common in children under the age of 15.

How is it transmitted?

Rabies can be carried in any warm-blooded animal (domestic or wild).

Rabies is spread from an infected animal when the virus from its saliva enters the victim’s nervous system through a bite, scratch, or lick on open skin or mucous membranes (eyes, nose and mouth).

What are the symptoms?

Symptoms generally take one to three months to appear, but this may vary considerably from several days to several years.

Early symptoms are flu-like, including headache, feeling generally unwell, fever, and fatigue. There may be discomfort or pain including tingling or numbness at the exposure site (i.e. bite).

Once symptoms appear, the disease progresses quickly as the central nervous system is attacked. The illness generally presents in one of two ways:

“Furious rabies” is more common, and is characterised by anxiety, confusion, hyperactivity, hallucinations, fear of water (hydrophobia) and seizures.

“Dumb rabies” occurs in approximately 30% of patients and presents with weakness and paralysis.

Once symptoms appear, rabies is almost always fatal. In both “furious” and “dumb” rabies, death usually occurs within seven to fourteen days due to breathing failure caused by paralysis of the respiratory system.

Can rabies be treated?

If you have been exposed to the virus (bitten or scratched), shots (called post-exposure prophylaxis) can be effective at preventing the disease, as long as they are received as soon as possible.

Post-exposure prophylaxis is available worldwide, but it is often difficult to obtain.

There is no specific treatment for rabies once symptoms appear.

Where is rabies a concern?

Rabies occurs worldwide except in Antarctica.

Most human deaths occur in Asia and Africa and the disease is mainly transmitted by dogs.

There is a high risk of rabies in Central and South America and the Caribbean.

Bat rabies has recently re-emerged and is a concern in Australia and Western Europe. Bats are the source of most human rabies cases in North America.